WinGD X92 - Page 440

Maintenance6420−1/A1
Winterthur Gas & Diesel Ltd.
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9) Remove the pins (2, Fig. 1).
10) Close the covers (1).
11) Install the pin (2) in the stowage position.
3. Relief Valve − Check
WARNING
Injury Hazard! If the disc springs are compressed, do not
disassemble the relief valve. Parts can eject at high speed and
cause injury. If there is damage or a malfunction, speak to the
manufacturer of the relief valve, or Wärtsilä SwitzerlandLtd.
1) Do a check of the relief valve during each engine overhaul as follows:
a) Do a visual check for damage and corrosion. If necessary, replace the relief
valve (1, Fig. 4).
b) Make sure that there is a clearance (Y) between the flange (4) and the seal
plate (3), i.e. the O-ring (5) is serviceable.
c) Make sure that the distance X is 133 mm, i.e. the pressure of the disc springs (2)
is sufficient.
X
Y
5
3
4
1
2
1
WCH02793
Fig. 4: Relief Valve
2015
Scavenge Air Receiver − Clean and do Checks